Window-screen.



V. ASAZZA WINDOW 'APPLICATION 111-11111 JULY 25 SCREEN WIT/VESSES f/MWM ATTORNEYS window screens.

VLETINO CASAZZA, 0F NEW YORK, N. Y,

WINDOW-SCREEN.

Specification of Letters Patent.

Application led July 25, 1912. Serial No. 711,403.

Yorin have invented a new and Improved vWindow-Screen, of which the following is a full, clear, and exact description.

Among `the principal objects which the present invention has in View are: to pro` vide means for permitting and forinducing the escape of iiies from the rooms provided with the screens; to provide means for reversing the operative position of the screen; and to provide traps for the capture of iies when passing through the screen.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views, and in which- Figure 1 is a perspective view of a window screen constructed and arranged in accordance with the present invention, part of the netting having been removed to show the construction of vparts otherwise concealed; Fig. 2 is a vertical section, o-n an enlarged scale, of a screen constructed in accordance with the present invention; Fig. 3 is a similar sect-ion, showing the screen in an -operative position the reverse of that shown in Fig. 2; Fig. 4 is a detail view in perspective of a corner fragment of the screen when provided with a trap for capturing insects.

As seen in the accompanying drawings, the screen, when constructed in accordance with the present invent-ion, is proyided with an outer frame 9 and an inner` rame 10. The frame 9 is, as a rule, st-ationarrly mounted in the window frame, and maybe constructed to fit the same. The inner frame 10 is pivotally connected, by means of pins 11, with the outer frame 9. By means of this ponstruction, the frame 10 may be reversed whenever it is desired. The frame 10 is furnished with a covering of wire gauze 12, of the kind usually provided for y The upper and lower rails of the frame 10 are provided with flared recesses 13, each recess being provided with a perforation 14.

When adjusting the gauze 12 to thev frame, care is exercised not to cover the perforations-14:, .these forming the passages through which the insects pass when leaving the apartment. By placing the perforations 14 along both the upper and lower edges of the frame, provision is made whereby when the screen is inverted, the exit perforations are to be found at the top of the screen. These perforations are so inco-nsiderable that flies or insects, as a rule, will not enter from the outside, though they will pass from the inner to the outer side, being directed by the increased light which is on the outside of the screen.

x Each of the stiles of the frames 10 is scarfed or cut to form benches 15 having inclined surfaces upon which are fastened ribbons formed of wire gauze. The ribbons 16 are inclined from the vertical, and the upper and lower edges are lapped, as best seen in Figs. 2 and 3 ofthe drawings. The arrangement of the ribbons 16 is such that an insect crawling up the face of one of said ribbons passes to the inside of the ribbon next above.

The theory of operation of the herein-disclosed. screen is based upon the tendency 0f insects, when on a vertically-disposed surface, to crawl'upward thereon. When the ribbons 16 are in the usual operative posi' tion, where the said ribbons are turned toward the room in the windows of which they are placed, the insects, alight-ing on the surface of the ribbons and crawling upward, pass into the space between said ribbons and the gauze 12. If, in their confusion, they fly backward from the gauze 12, they alight -upon the upwardly-inclined surface of one of the ribbons 16, and cra-wl to the upper edge thereof. Instead of crawling down on the reverse side of said ribbon, the instinct of the insect is to fly from the upper edge and, in alighting, to then again, following its tendency, crawl in an upward direction. In due course, the insect follows the gauze 12 upwardly, and passes through one of the recesses 13 and one of the perforations 14 thereof, to the outer air.

For the purpose of cleaning the screen, the frame l0 may be rotated on the pins 11, to dispose f:he gauze 12 on the side of the frame toward the interior of the room, as shown 'fest in Fig. 3.

When it is desired to trap the insects, the gauze 12 is provided with one or more open.- ingsfl adjacent the upper edge of the frame 10, and over the openings 17, a suitable trap, such as the cage 18, is suspended. By any Suitable means, such as a hook 19, the trap or Patented Feb. 11, 1913.

cage 18 may be suitably baited to induce the Vinsects to pass within the interior of said v frame and movable therein; pivotal mountinfgs for said inner frame; a gauze covering for said inner frame; means for forming dpassages at t-heupDe'r edge of said inner fram-e opening at bothsides of said screen; a plurality of lapped gauze sections stretched horizontallv on said window frame at the side thereof opposite that having said gauze covering, said sections being spaced apart to afford passages leading into the space between said sections and said' covering.

' rh A screen such as described, comprising an outer holding frame; an inner frame pivotally mounted in said outer frame, said inner frame comprising horizontally-disposed rails having angular recesses formed therein to open at one side of said inner frame, and vertical stiles having inclined benches formed thereon at the side of said frame opposite that from which the said recesses open; a gauze covering mounted upon said inner frame at the side having the recesses, said covering being limited to expose said recesses; and a plurality of horizontally-extended gauze sections mounted on said benches, said sections overlapping and separated to form passages vbetween said sections, leading upwardly to the interior of the frame between said sections and said gauze covering.

In testimony whereof I have signed my name tc this specification in the presence of two subscribing witnesses.

VALENTINO CASAZZA.

iVitnesses JOSEPH PERSONSUE, SOPHIE GARBARINI.

dopjes of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

